Hi Ginny,
What kind of yellow are we talking here-- a golden tint? completely lemon yellow? yellow with green veins? With a better description or picture, it would be easier to diagnose the problem, if there is one (shich it seems there may be). A couple things that I can think of that would make the new leaves more yellow colored would be either a nutrient deficiency, or sometimes if Camellias are planted in high light situations (they usu.prefer partial or full shade) their leaves will turn a yellowy, or bronze-ish color. How are the lower leaves?

Lunaflora

Yellowing new leaves on an acid loving plant could indicate an iron deficiency. What is the pH of your soil?

Opps, forgot to get back to this question. Thanks for the ideas. I also talked to a member of our local camellia society who said it is most likely the fact that when it was leafing out it was in full sun. The trees that shade it in the summer are deciduous. A fact I didn't think about when I planted it! It may be a lost cause for camellias in this spot. The lower leaves are green, it's just the new leaves from this spring. I haven't checked the Ph but should. Thanks again
Ginny